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Bald Eagle (American Eagle)
Secondary or primary flight feather from an immature (juvenile) Bald Eagle, likely from the inner primaries or outer secondaries

Bald Eagle (American Eagle)

Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Accipitriformes, Family: Accipitridae, Genus: Haliaeetus, Species: H. leucocephalus

AI-generated identification · may be incorrect

Family: Accipitridae (Hawks, Eagles, and Kites)

Shape
Symmetrical to slightly asymmetrical vane with a rounded tip, broad outline, typical of large soaring raptor flight feathers
Size
Approximately 7 to 9 inches visible, scaling to a total estimated length of 10-14 inches depending on exact wing position; consistent with a subadult or immature eagle wing feather
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Description

A magnificent large flight feather featuring the striking dark brown and stark white coloration characteristic of an immature Bald Eagle. The adult Bald Eagle is famous for its snow-white head and tail contrasting with a dark brown body, but juveniles display mottled brown and white plumage for their first four to five years before gaining their adult coloration.

Colour & Pattern

Bicolor pattern featuring a distinct block of rich dark brown distally and crisp white proximally, separated by a sharp diagonal transition line; typical of immature Bald Eagle wing feathers featuring variable white mottling

Barb Structure

Pennaceous, tightly interlocked with robust barbicels forming a firm and durable vane, intact condition with minimal fraying at the base

Rachis & Barb Pattern

Sturdy, thick central rachis transitioning from white/ivory near the base to dark brown distally, strong flexibility, high barb density angled tightly toward the tip

Texture & Surface

Stiff, smooth, matte to slightly glossy vane surface, rigid structure designed to withstand high aerodynamic loads during soaring and flight

Feather Placement

Wing (flight feather, likely inner primary or secondary covert/flight feather given the striking block pattern of dark brown and white typical of immature plumages)

Key Features

Large size, robust white-to-brown rachis, and the distinct sharp block coloration of dark chocolate brown meeting crisp white without complex fine barring

Habitat

Large bodies of open water (rivers, lakes, reservoirs, coasts) with old-growth trees or tall cliffs for nesting and perching

Geographic Range

North America, ranging from Alaska and Canada down through the contiguous United States to Mexico, typically year-round residents near major water bodies

Ecological Role

Apex avian predator playing a vital role in aquatic ecosystems by feeding primarily on fish, waterfowl, and carrion, serving as a key indicator of environmental health

Similar Species

Golden Eagle (Aquila chrysaetos), whose immature feathers often feature more uniform dark brown with white patches at the base rather than a clean diagonal split, and large gulls or pelicans

Interesting Facts

Bald Eagles build the largest tree nests recorded for any North American animal, some weighing up to several tons and used for decades by successive generations

Cultural Significance

Deeply sacred to many Indigenous peoples across North America, symbolizing strength, courage, and a spiritual connection to the Creator. Historically utilized in sacred regalia and ceremonies

Field Identification Tips

Look near large bodies of water, beneath known eagle roosts, or near old-growth nesting trees, especially during late spring and summer molting season

Condition Notes

Good condition, clean vane with minimal wear at the tip and intact barbs, showing minor natural blemishes typical of a molted feather found in the wild